Helicobacter pylori infection, chronic atrophic gastritis and risk of stomach and esophagus cancer: Results from the prospective population‐based ESTHER cohort study

Helicobacter pylori ( H. pylori ) infection is considered as principal cause of gastric cancer. It is further associated with a reduced risk of esophageal adenocarcinomas. In a large prospective population‐based cohort study including 9,949 subjects with average observation time of 13.8 years, we assessed the risk of invasive gastric and esophageal cancer according to H. pylori infection and presence of chronic atrophic gastritis (CAG)....